Sannö, Axel
- Department of Clinical Sciences, Swedish University of Agricultural Sciences
Abstract
Background In horses, cats and dogs, the opioid butorphanol has been proven effective in management of visceral pain and for peri- and postoperative pain relief. The aim of this study was to evaluate physiological responses and indicators of noxious stimuli when adding butorphanol to xylazine for sedation of bull calves during surgical castration.Methods In total, 54 bull calves were randomly assigned to a control group sedated with only xylazine and a treatment group sedated with the addition of butorphanol prior to castration. Observation of physiological responses by blinded observers from sedation and 1 hour onwards.Results Apart from significantly more vocalisations in the treatment group prior, during and after the surgical procedure, no adverse effects of butorphanol addition were noted. Also, improved alertness and less drowsiness 1 hour after initiation of sedation were seen in the treatment group possibly associated with improved analgesia.Limitations A longer follow-up time after sedation and additional measurements of cortisol levels would have given additional valuable informationConclusion Addition of butorphanol leads to increased vocalisation during and possibly a shortened recovery time post-sedation.
Published in
Veterinary Record
2025
Publisher: WILEY
SLU Authors
Snygg, Lovisa
- Department of Clinical Sciences, Swedish University of Agricultural Sciences
- Department of Clinical Sciences, Swedish University of Agricultural Sciences
Nyman, Görel
- Department of Clinical Sciences, Swedish University of Agricultural Sciences
- Department of Clinical Sciences, Swedish University of Agricultural Sciences
UKÄ Subject classification
Clinical Science
Publication identifier
- DOI: https://doi.org/10.1002/vetr.6017
Permanent link to this page (URI)
https://res.slu.se/id/publ/145281